Anthozoa - Stauriida - Petalaxidae
Synonym: Grootia Yu 1984
Parent taxon: Petalaxidae according to J. Fedorowski et al. 2007
See also Bamber and Fedorowski 1998, Hill 1956, Sando 1983 and Sepkoski 2002
Sister taxa: Cystolonsdaleia, Huanglongophyllum, Ivanovia, Lithostrotionella, Lytvophyllum, Omaniphyllum, Paralithostrotion, Protoivanovia
Subtaxa: Petalaxis allisonae Petalaxis baculatus Petalaxis bailliei Petalaxis beauchampi Petalaxis belinskiensis Petalaxis besti Petalaxis branisai Petalaxis cantabrica Petalaxis celadensis Petalaxis confertus Petalaxis crassicolumnus Petalaxis dobrolyuhovae Petalaxis donbassica Petalaxis donetsensis Petalaxis ellesmerensis Petalaxis elyensis Petalaxis evidens Petalaxis exiguus Petalaxis exilis Petalaxis flexuosus Petalaxis fomichevi Petalaxis grootae Petalaxis immanis Petalaxis intermedius Petalaxis ivanovi Petalaxis korkhovae Petalaxis lisitschanskensis Petalaxis maccoyanus Petalaxis major Petalaxis mirus Petalaxis mohikanus Petalaxis mokomokensis Petalaxis monocyclicus Petalaxis multilamellatus Petalaxis occidentalis Petalaxis orboensis Petalaxis parvus Petalaxis perapertuensis Petalaxis persubtilis Petalaxis radians Petalaxis santaemariae Petalaxis sexangulus Petalaxis simplex Petalaxis stylaxis Petalaxis sutherlandi Petalaxis tabulatus Petalaxis taishakuensis Petalaxis thorsteinssoni Petalaxis tschucoticus Petalaxis vesiculosus Petalaxis wagneri Petalaxis wyomingensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Bolivia (2 collections), Canada (5: British Columbia), China (3), United States (25: California, Nevada, Oregon)
• Carboniferous of Canada (27: Alberta, Nunavut), China (3), Ireland (4), Japan (3), Morocco (4), Svalbard and Jan Mayen (1), Turkey (1), Ukraine (2), the United Kingdom (5)
Total: 85 collections including 102 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.